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Income Tax Expense - Summary of Tax Loss Carry Forward (Detail) - EUR (€)
€ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure Of Tax Loss Carryforwards [line items]    
Total € 366,175 € 368,780
Not More than Five Years [Member]    
Disclosure Of Tax Loss Carryforwards [line items]    
Total € 5,132 € 6,207
Expiration Date 2023-2027 2022-2026
More than Five Years [Member]    
Disclosure Of Tax Loss Carryforwards [line items]    
Total € 347 € 3,257
Expiration Date 2027 2026
No expiration [member]    
Disclosure Of Tax Loss Carryforwards [line items]    
Total € 360,696 € 359,316